title: Surface superconducting states in a yttrium hexaboride single crystal in a tilted magnetic field.
abstract: We present the results of an experimental study of the nucleation of superconductivity at the surface of a single-crystal YB(6) in a tilted dc magnetic field. The developed experimental approach allowed us to measure H(c3) at each side of the sample as a function of the angle between the dc magnetic field and the surface. Experiment showed that the ratio H(c3)/H(c2)≈1.28 when the dc field became perpendicular to the surface while the expected value of this ratio is 1. This sharp distinction with theory cannot be ascribed to the surface roughness.
authors.affiliation: The Racah Institute of Physics, Hebrew University of Jerusalem, 91904 Jerusalem, Israel.
authors.forename: M I
authors.initials: MI
authors.lastname: Tsindlekht
authors.forename: V M
authors.initials: VM
authors.lastname: Genkin
authors.forename: G I
authors.initials: GI
authors.lastname: Leviev
authors.forename: N Yu
authors.initials: NY
authors.lastname: Shitsevalova